Aqua Medic EVO 3000 Bedienungsanleitung Seite 10

pushed into the collection cup. This method removes organic wastes from the aquarium water before
they become part of the biological waste treatment cycle.
The venturi pump draws the water out of the aquarium or the filter chamber, mixes it in the pump
housing with air which is then cut into small air bubbles by the Aqua Medic 3D needle wheel. This
water/air mixture is pumped into the reaction pipe where the organic substances are taken up by air
bubbles. Foam is formed and pushed into the foam cup. The purified water leaves the skimmer via
the outlet (Fig. 1, No. 12) and is directed by gravity back to the aquarium or filter sump.
4. Set-Up
The EVO 3000 is a "Hang on" skimmer.
Fig. 4: EVO 3000 in "Hang on" operation
Set up as an external skimmer on the aquarium (Fig. 4):
Assemble the necessary parts of the skimmer (see Fig. 1). Now, it can be attached to the aquarium.
Look for a protected place within easy reach - at the side or the back. The venturi pump is connected
with the pressure hose (17). The length of the flexible tubing should be as short as possible. The
pump must be placed directly below the surface because the air intake will decrease if it is mounted
deeper. An 8-mm air tube is connected to the air injector and fixed above the water level so the
pump can draw in air. Use the full length of the air hose which is attached to the sound absorber
(22).
Now, the skimmer can be aligned with the aquarium. The two screws at the bottom of the skimmer
are adjusted in such a way that the skimmer is hanging safely on the aquarium. It is advantageous if
the skimmer is not 100% upright but leaning slightly (2º) to the aquarium (Fig. 4). The skimmer is
then not only hanging more safely, but also back-flow of water from the outflow box over the
aquarium frame is prevented. Both adjusting screws at the bottom are supplied with silicone suction
cups for increased safety. The skimmer is now ready for use and can be started.
5. Starting/Performance
The system can be started when the skimmer is correctly installed. After switching the pump on, air
is automatically drawn into the skimmer. To minimize the noise level, connect the air inlet tube with
the blue connecting piece of the sound absorber supplied. Fix the sound absorber with the holding
plate on the aquarium or filter system above the water level.
The needle wheel breaks the air into small bubbles. This method eliminates the greater proportion of
the noise. After the initial start, some hours may pass before the first foam is pushed into the
collection cup. This is due to a reaction between the surface of the acrylic glass and aquarium water.
Equilibrium of electrical charges takes place. After a maximum of 24 hours, the foam should be
pushed evenly into the collection cup. The quantity of liquid and organic substances is dependent on
the pollution of the aquarium.
6. Problems
Adjustment
The skimmer is adjusted using the flow control (Fig. 1, No. 5) as well as the electronic control DC
Runner Control so it works to the optimum. The water level in the skimmer is adapted to foam
production. If the foam is too wet even when the flow control tap is fully open, the neck extension
(Fig. 1, No. 9, not included) can be mounted to adjust the foam production.
10